Dish-washing machine



(No Model.)

. T. A. 8v H. W. PUDAN.

DISH WASHING MACHINE.

No. 426,739. Patented Apr. 29, 1890.

W//VESSES: A MW H WS UNITED STATES ATENT OFFICE.

THOMAS A. PUDAN AND HERBERT lV. PUDAN, OF SACRAMENTO, CALIFORNIA.

DISH-WASHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 426,739, dated April29, 1890.

Application tiled August 14, 1889. Serial No. 320.754. (No model.)

T0 ctZZ wiz/0m it may concern:

Be it known that we, THOMAS A. PUDAN and Y HERBERT W. PUDAN, ofSacramento, in the county of Sacramento and State of California, haveinvented anew and useful'lmprovement in Dish-Washing Machines, of whichthe following is a full, clear, and exact description.

This invention relates to an improvement in dish-washing machines; andits object is to simplify the construction of the machine shown anddescribed in an application for a patent tiled by Thomas A. Pudan onSeptember 8, 1888, Serial No. 284,857, and allowed April 29, 1889,whereby increased efficiency is secured and cost of productionmaterially reduced.

To the end named the invention consists in the novel construction 'ofparts and their combination, as is hereinafter described, and pointedout in the claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a front elevation of the dishwasher, having its front wallbroken away to expose the interior. Fig. 2 is a side elevation insection, taken on the line a; Fig. l. Fig. 3 is a top plan View of thefront portion of the casing or water-holding compartment of thedish-washer, the crank, shaft-supportingbracket frame, and the engagedportion of the brush-operating shaft being also shown. Fig. 4 is a planview of an adj unctive appliance used to hold a number of small articleswithin the washing-compartment of the machine in position to be cleanedby forced currents of hot water. Figs. 5 and 6 are side and end views,respectively, of a Wire cage in which cups, saucers, and other similararticles of table-ware may be placed and suspended within thedish-Washer to be operated upon; and Fig. 7 is an enlarged detached Viewof a de- Vice for connecting the brush removably to its actuating-shaft.

The casing of the dish-washing machine is preferably made of rectangularform,mounted on supporting-strips A2, and divided into two l5ocompartments A and A (see Fig. 2) bya vertical partition g. The frontand larger chamber A is the dish-washing compartment. The other or rearchamber is intended to hold clean hot water for rinsing the dishes afterthey have been washed.

Upon the base-'wall of the chamber A two grooved racks H l are securedto an upright bracket-piece h, that is removable from the chamber. Thelower rack projecting beyond or in front of the other is furnished witha series of parallel hook-shaped projections a", which being spacedapart produce intervening depressions that are adapted to vreceive andretain in position large salvers or dishes having a substantiallyrectangular form. lThe rack l just mentioned is made flat or parallelwith the wall of the chamber it rests upon, and above it, projectingforwardly from the vertical bracket-piece h, the rack H is secured,which is curved on its upper surface, as shown in Fig. l. It is alsoprovided with alternate grooves and hook-shaped projections s, similarin form to those produced on the other rack l. Both of the racks areattached to the bracket-piece h, which rests against the partition g andis provided With a handle h', by which the racks may be removed from thechamber A. y

The rack H is designed to receive the edges of plates or other disheshaving curved or circular peripheries. There is shown in Figs. l and 2 adish f in position, having its curved edge resting in one of the groovesof this rack, while its bottom is firmly supported by the uprightbracket-piece h, against which it leans.

The peculiar construction of the rack H for the accommodation ofround-edged dishesv is one of the features of our present invention, andby its provision the use of cleats on the sides of the removable racksand bracketpiece is rendered unnecessary, as the curvature of the hookedproj ectionsl s causes them to have an extended bearing on the circularedges of plates, soup-dishes, and other round articles of similarconformation, so that they will be retained in proper position toreceive the scrubbing action of an engaging-brush, which will now bedescribed.

At a point about the center of width and height of the chamber A uponits front wall a a conical shell D, preferably made of metal,

ICO

is secured by its ange D. The perforation formed in its outer en d, alignin g with a slecveshaped bearing a,which is lirmly inserted in amating perforation formed in the wall a, produces a supporting-franiefor the drivingshaft C, that is thus revolubly sustained at right anglesto the front wall a.

The brush-head B, from which a suitable bristle brush B projects towardthe bracketpiece 7L when all parts are in position, is sc cured to thedrivingshaft C by means of a forked hub C, the flanges b of which areadapted to embrace the head B, bearing thereon, as shown in Fig. 7. Inan aligning perforation made through the flanges l) and brush-head abolt c is introduced, which bolt is held in place by a nut on one end.The hub C and shaft C are held together by a transverse rivet c or otherpreferred means.

Upon the drivin g-shaft C' two similar washers o p are placed. Thesehave their adjacent faces made convex, so as to reduce their surface ofcontact and obviate frictional resistance between them to a grea-textent. The bearing-surface of the washers should be rendered true andsmooth, and it will be advantageous to harden them. The washer l) isseated upon the inner surface of the outer end of the bracket-frame D.

Between the washer p and the box a a collar (l is formed on or issecured to the shaft C. This collar provides an abutment for one end ofthe spiral spring E, the other terminal of which bears against the fiatface of the washer p.

On the outer extremity of the shaft C a crank-arm F is mounted andclamped by the jam-nut u, thus affording means for the direct rotationof the brush B', and also for drawing back the brush. Owing to theresistance of the spring E, the brush will be permitted to yield andconform to the variations in shape of the articles it bears upon when inoperation, and it is intended that the surface of contact between thewashers op will be so reduced as to allow the washer p to revolve alongwith the spring E and shaft C.

The wire frame J is intended to receive forks, knives, spoons, andsimilarsmall ware, which are clamped between two portions of Jthe framethat are hinged at fm. In use the frame is introduced upright againstthe parwater used as a detergent.

tition g, so as to receive the impingenicnt of the revolv n brush l.lVhen one side of the articles held in the frame J is cleaned, theposition of the latter is reversed and the other surface of the warebrought into contact with the brush.

Acage L, constructed of wire-netting having an open mesh, (shown inFigs. 5 and (3,) is of use to hold cups, saucers, and other smallarticles of table-service which cannot be conveniently supportedotherwise. rFliese are not directly engaged by the bristles of thebrush-head, but are cleansed by the enforced attrition of watenourrentsinduced by the rapid rotation of the brush in the hot soapy The cage Lis furnished with hooks n, whereby it supported in the chamber A, thehooks engaging the upper edge of the partition-wall g when the cage isin position. A rinsing-chamber A is also provided in connection with thewashing device. There is nothing novel in this provision of itself, orin its combination, as shown; but it is furnished to render the machinecomplete and capable of thoroughly cleansing all articles oftableserviceorcroeltery-ware adapted for culinary uses. Said chamber Ais formed by the transverse partition g, which is secured in place anddivides the receptacle into two chambers, as shown in Fig. 2, and, aspreviously stated, the bracket-piece 72, is adapted to rest against thispartition gwhen the machine is in use and dishes are being operated uponby the brush B.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

In a dish-washing machine, the combination, with a watenholding chamber,and a support for holding the articles to be washed, of a frame, a shaftrevoluble in said frame, two opposed washers anda stop on said shaft, aspiral spring' between said stop and the inner washer, and a rotarybrush on the inner end of said shaft, substantially as set forth.

THOMAS A. IUDAN.

HERBERT W. PU I`)AN.

Witnesses: i W. R. FnLrEn, F. XV. AYER.

